baber/WOPTO huggingface dataset:
Patent GB-219437-A (GB)
Title: An electrical process for facilitating the discovery of mineral deposits
IPC: G01V3/02
Filed: 1923-05-17
Abstract: 219,437. Ambronn, R. May 17, 1923. Locating conductors. - Mineral deposits are located, and magnetic deposits are differentiated from non-magnetic, by determining the equipotent.ial lines when direct current and alternating currents of high and low frequency are simultaneously sent into the ground, the determination being made separately for each kind of current. Fig. 2 is a plan showing a fault 3 at the junction of a sandstone formation 1 with salt-containing underground water and a granite formation 2 containing an iron pyrites deposit 4 and a magnetic iron ore deposit 5. Electrodes c, d are. connected to sources e, /, g of direct, low-frequency alternating, and high-frequency alternating current simultaneously or, by means of a switch h, successively. Collector electrodes a, b, the latter occupying successive positions b' - - b<6>, are employed for locating the equipotential lines 11 at the fault 3. By inserting the collector electrodes at a1 and b1<SP>1> - - b1<SP>6>, the, distribution in the neighbourhood of the deposit 4 can be obtained, and similarly for the deposit 5. Similar systems of equipotential lines are obtained with direct and alternating currents, but in the former case polarization phenomena are observed on switching off the current. With high-frequency currents the magnetic deposits can be differentiatel owing to the alteration of phase of the current in their neighbourhood, which may be determined for example with a frame aerial. For use with direct current, non polarizable electrodes as shown in Fig 5 are preferably employed. A metal rod 10, for example amalgamated cadmium or zinc, which may be hollow to permit its temperature to be measured, is arranged within a concentrated solution 9 of a salt of the electrode metal in an inner vessel 8, which is contained in an outer vessel 6 filled with dilute solution 7 of the same salt, and in addition underground water. Both vessels 6, 8 are of porous material at their lower ends. Such electrodes may also be employed for investigating the distribution of earth currents generated by the deposits themselves owing to electrochemical differences at their upper and lower ends. Currents may also be artificially generated in the earth on arrangement of electrodes particularly suitable for ascertaining the shape of a deposit that has been located is shown in Fig. 4. An electrode i is inserted into the deposit, and four electrodes k<1> - - k<4> are arranged around it and connected through equalizing resistances m<1> - - m<4> to the source of current l. By regulating the resistances m<1> - - m<4> the current distribution may be made as homogeneous as possible. With high-frequency currents adjustment of these resistances permits the natural frequency of the earth-current circuits to be tuned to that of the current supplied.
Patent GB-478240-A (GB)
Title: Machine for grinding screw threads in chasers
IPC: B24B3/60
Filed: 1936-05-11
Abstract: 478,240. Grinding chasers. REISHAUER - WERKZEUGE AKT. - GES. May 11, 1936, No. 13333. Convention date, Jan. 6. [Class 60] A machine for grinding chasers w to the form shown in Fig. 4, with full threads a, band tapering threads from b to the edge 9, comprises a grinding-wheel 63, wider than the chasers wand having in its periphery a number of closed grooves and ridges, mounted' on a slide 5 adjustable on the base of the machine. The chasers w are mounted in a row on a clamp 89 mounted on a cross-slide 88 carried by a plate 79 pivoted at 73 to a main slide 24 and adjustable angularly thereon by worm gearing 75 ; the plate is clamped by a bolt 80. The slide 24 is movable longitudinally on ways on the base, one of the ways being of halfround cross-section, and the other, 87, of T-section and adjustable vertically by a cam 90 rotatable, through worm gearing 89, 89<1> by a shaft 152, so that the side of the slide 24 may be raised to tilt the slide transversely, at an angle a, Fig. 4, to produce the tapered teeth as shown. The Specification as open to inspection under Sect. 91 describes also hydraulic operating means for traversing the work and for feeding the grinding-wheel. This subjectmatter does not appear in the Specification as accepted.
Patent GB-865662-A (GB)
Title: Improvements in or relating to off-shore terminals
IPC: B63B22/02
Filed: 1958-04-28
Abstract: 865,662. Artificial islands. WALLACE, W. April 27, 1959 [April 28, 1958], No. 13415/58. Class 68(2). An off-shore terminal comprises a platform 17 supported by legs 11 at a height above the H.W. level 18. Mounted on the platform are a plurality of booms 23 pivoted to the structure at 24. Pipe lines 16 which extend from the shore pass up inside the legs of the tower and each pipe ends in a manifold to which is connected a number of small pipes 21 the carrying capacity of which is equal to that of the single pipe. These pipes 21 are connected through flexible sections 30 to further pipe sections 29 extending along the booms and ending in flexible sections 31 which connect to a ship moored to dolphins or buoys provided adjacent the .tower. Slack in the flexible sections 31 is taken up by a spider 32 and paid out as necessary due to movement of the ship. The boom is luffed by the ropes 25 and winches 22 to accommodate movement of the ship due to tide and varying cargo weight and this movement can be automatically controlled.
Patent GB-804279-A (GB)
Title: Improvements in or relating to centrifugal speed governors
IPC: G05D13/10
Filed: 1955-05-10
Abstract: 804,279. Centrifugal governors. BOSCH G.m.b.H., R. May 10, 1955 [May 14, 1954], No. 13443/55. Class 57. A centrifugal speed governor for internal combustion engines working with direct fuel injection has a carrier 2 attached to an enginedriven shaft 1 and carrying governor weights 4 adapted axially to displace a sleeve 6 which is slidably mounted on the carrier 2 by an axially narrow bearing zone 7 and pivotally connected with a lever 10. The latter is pivotally mounted on a pin 11 and connected by a pin 31 with a lever 33 pivoted at 34, loaded by a light spring 40 and connected by a link 37 with the control rod 16 of a fuel-injection pump. A third lever 45 is also pivoted on the pin 11 and is normally held against an adjustable stop 49 by a stiff spring 25 anchored for adjustment purposes to a screwoperated lever 46 and supported by a lever 18 which is connected to a lever 20 located outside the governor casing so that the inclination of the lever 18 and hence the loading exerted by the spring 25 on the lever 45 may be varied. In operation, the movement of the sleeve 6 is at first opposed only by the spring 40, until it has been displaced by a distance c to engage a spring-loaded bolt 54. During a further displacement d, the fuel supply is gradually reduced until the sleeve abuts the lever 45 when further movement is opposed by the spring 25 and a state of equilibrium is produced. For regulation at a lower speed, the lever 18 is pivoted in a clockwise direction and the spring 25 opposes the movement of the sleeve 6 before the stop bolt 54 has been displaced by the distance d. A spring 60 engages the lever 45 under no-load conditions to ensure smooth running. When the lever 20 is pivoted into contact with a stop member (not shown), projections 62 on the lever 18 move the lever 10 together with the lever 45 so that the control rod adopts its stop position. A simplified construction in which the levers 33 and 45 are not employed is described. Specification 804,280 is referred to.
Patent GB-1411533-A (GB)
Title: Microscope illumination system
IPC: G02B21/08
Filed: 1974-03-26
Abstract: 1411533 Microscope illumination systems AMERICAN OPTICAL CORP 26 March 1974 [26 March 1973] 13444/74 Heading G2J A three element zoom lens disposed after the field diaphragm FD comprises a stationary negative lens T3 flanked by two positives T2, T4 movable in fixed relationship to vary the magnification of the system.
Patent GB-134660-A (GB)
IPC: B62D21/02
Abstract: 134,660. Budge, J. Dec. 2, 1918. Frame components, sections and forms of.-To secure strength and stiffness, the floor of the body is incorporated with the frame of the chassis. The frame consists of main longitudinal members A connected by end members D and stiffened by floor members B having a space C between them for the engine and transmission gear. Part of this space is filled in by boards, which may be fixed to the floor frame, B to give additional strength. The frame shown is of wood, but the members A may be strengthened by steel flitch plates. The body, constructed without a floor, is secured to the floor B, and may be that described in Specification 134,661, [Class 79 (iii), Motorvehicles, Arrangement &c. of parts of].
Patent GB-649458-A (GB)
Title: Improvements in and relating to self-rotating sustaining rotor appliances
IPC: B64D19/02
Filed: 1948-05-19
Abstract: 649,458. Rotary wing systems. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU CENTRE. May 19, 1948, No. 13615. Convention date, May 27, 1947. [Class 4] In a rotary wing system, particularly for use as a rotary parachute, in which the blades are mounted on drag and flap pivots, the blades are arranged to take a leading position relatively to the drag link at low speeds in order to reduce the effective angle of incidence. As shown in Figs. 2 and 3, each blade 3 is capable of movement about flap and drag hinges 4, 5, respectively, and is caused to assume an initial angle of advance α by a tension spring 7 secured to the blade and a lug 8 on the drag link 6. As the speed of rotation increases the spring 7 extends and the blade 3 moves rearwardly towards the radial position, thus increasing the effective angle of incidence. In the arrangement according to Fig. 12, the blades may be folded together and the whole rotor unit retracted by hinging about a pivot 15. Movement about the hinge may be effected by a power jack.
Patent GB-1243767-A (GB)
Title: Isoxazolidine derivatives and their method of preparation
IPC: C07D261/02
Filed: 1970-03-20
Abstract: 1,243,767. Isoxazolidine derivatives. GRUPPO LEPETIT S.p.A. 20 March, 1970 [24 April, 1969], No. 13637/70. Heading C2C. Novel compounds I where n is 0 or 1; R 1  to R 3  are OH, alkoxy or acyloxy; and one of R 1  to R 3  may also be H, are prepared by reacting isoxazolidine with a compound II where R 4  to R 6  are alkoxy or acyloxy and one may be H; and, optionally, where one or more of R 4  to R 6  is/are acyloxy hydrolysing said group(s) to OH. Pharmaceutical compositions comprise a compound I together with a suitable carrier and are administered orally or parenterally as central nervous system active agents.
Patent GB-149105-A (GB)
Title: Control apparatus for certain forms of ships' steering and manoeuvring apparatus, and for other purposes
IPC: B63H25/28
Filed: 1919-05-30
Abstract: 149,105. Brown Bros. & Co., and Wallace, W. May 30, 1919. Mountings.-Consists in apparatus for controlling and actuating the movements of two integers which are movable relatively and conjointly such as certain ordnance movements, one movement being effected or controlled by connecting the controlling valves or devices of the engine to a pivoted or floating- lever or like mechanism and the other movement by connecting the sleeve or casing of the controlling valve or other co-acting controlling part by a straight-line motion linkage to a hand-wheel, telemotor or like. For double steering gears for ships, two double-acting rams A, B, Fig. 1, with racks A1, B1, operate quadrants A4, B4, on the rudder post R, the ram cylinders A2, A3, B2, B3 being connected by pipes M2, M3, K2, N3 with a controlling member containing valves F, G, Fig. 2, and sleeves F4, G4. The valves F, G have rods C3, D3, connected by links with arms C, D on the rack members A, B and also by links C4, D4 with a lever E pivoted at E1, and carrying a main controlling-rod E3. The sleeves F4, G4 are controlled by the reciprocation of a main control-rod L1, through a cross-head L and rods F5, G5. The relative positions of the ports in the sleeves and casings are such that on movement of the pivoted lever E the rudder members A5, B5 are moved conjointly for steering and on movement of the cross-head L the members are moved relatively for manoeuvring. In a modification, the valves move in a fixed casing without sleeves, and the pivot lever is carried by a block which can be reciprocated. This reciprocation of the lever and corresponding reciprocation of the valves takes the place of the sliding sleeves. Alternatively, the first pivoted levers C2, D2, to which the valverods C3, D3 are attached, may be pivoted to slidable blocks. Specification 3249/14, [Class 114, Ships &c., Propelling &c.], is referred to.
Patent GB-238974-A (GB)
Title: Improvements in means for fixing pulleys, wheels, cranks, couplings, and so forth to shafts or the like
IPC: F16C3/10
Filed: 1924-06-05
Abstract: 238,974. Day, C. June 5, 1924. Securing together machine elements for the transmission of rotary motion; crank shafts. -Pulleys, wheels, cranks, couplings, &c. are secured on shafts &c. by being shrunk or forced thereon and by a number of tapered or parallel flat keys or round pins welded in position. As applied to a crankshaft, the webs 1 are shrunk on the shaft 2 and pin 3, several holes are drilled at the joints of the web, with the members 2, 3, parallel to their axes, and cylindrical or slightly tapered pins 4 are fitted therein, the exposed end or ends of each pin being united with the adjacent metal, as shown at 5, by electric, acetylene, or other welding process.
Patent GB-581047-A (GB)
Title: Improvements in and relating to hydraulic presses
IPC: B21D22/12
Filed: 1944-07-19
Abstract: 581,047. Cupping. BRIDGENS, W. R. July 19, 1944, No. 13801. [Class 83 (iv)] [Also in Group XXIX] A flexible platen com prises a, hollow rubber or like block 5 providec with inlet and outlet valves .8, 9 through which liquid is admitted to the hollow anc trapped therein to form a cushion.
Patent GB-380030-A (GB)
Title: Device for automatically closing a gas tap
IPC: A47G19/32
Filed: 1932-05-13
Abstract: 380,030. Safety cut-off gas valves RAIBLE, F., 7, Pickelstrasse, Munich, Germany. May 13, 1932, No. 13848. [Class 135.] Thermally-actuated valves.-A thermal safety cut-off device for automatically closing a gas tap on extinction of the flame comprises a sliding catch rod h which is projected by the expansion of the thermal member i, k into engagement with a recess f in the sliding valve plunger b to hold the valve open but is withdrawn to allow the valve to close as the thermal device cools down. Until the thermal device is operative the valve is retained in its open position by a hinged cateh j engaging under the handle d, as shown, this catch being released, as the thermal rod h moves forward, by means of the abutment w. The recess f in the plunger valve b is wide enough to allow the valve to be adjusted for flow when retained by the catch rod h. The thermal expansion strip i is mounted by means of cylindrical endpieces p inserted into sleeves n, with hinged covers o, the sleeves being supported on a bar m mounted by means of a bracket l on the gas pipe q. The heat-conducting strip k, attached to the expansion strip i, extends into proximity with the flame.
Patent GB-734278-A (GB)
Title: Improvements in pannier bags of the kind used on cycles
Inventor: SMITH WILLIAM BERNARD
IPC: B62J9/00
Filed: 1952-06-03
Abstract: 734,278. Bags. MIDLAND GEAR CASE CO., Ltd. Sept. 1, 1953 [June 3, 1952], No. 13884/52. Class 133. A pannier bag comprises a front 1, a bottom 3, a back, and a closure flap 5, constructed of a single piece of flexible material, gusset sides 4 being sewn at their edges to the edges of the front, back, and bottom. The bags may be secured in closed condition by straps to carriers 8. Each side 4 is provided with draw cords 9 which are threaded through eyeletted holes in strips 11 and through a tab 12 secured to the front 1, where they are tied and covered by a flap 13 depending from the flap 5. The cords 9 can be tensioned to cause the gussets 4 to collapse and maintain the bag in a neat condition when empty. The strap 11 is stitched into the seam 6 which is reinforced by an edging strip. Specification 730,586, [Group XXXI], is referred to.
Patent GB-253511-A (GB)
Title: An improved plug for sealing an opening in a vessel or container
IPC: F16J13/04
Filed: 1926-06-01
Abstract: 253,511. International Combustion Engineering Corporation, (Assignees of O'Brien, J. D.). June 15, 1925, [Convention date]. Doors.-A plug having a tapering head 14 and a screw-threaded stem 15 for closing a tapering opening in the wall of a boiler, preheater, oil still or other vessel is made up of complementary mating sections 12, 13, each having a head portion and a stem portion. The sections are inserted in turn through the opening and when mated the head is drawn into the opening by a nut 18 on the stem. The nut bears against a washer 16 having radial arms 17 pressing upon the wall of the vessel.
Patent GB-378857-A (GB)
Title: Improvements in free-wheel devices
IPC: F16D41/00
Filed: 1931-05-11
Abstract: 378,857. Free-wheel clutches. GILLETT, E. H. J. C., 51, Priory Road, West Hampstead, London. May 11, 1931, No. 13937. [Class 80 (ii).] Locking means for a free-wheel clutch, more particularly for motor vehicles, comprises a reversely acting controllable coil clutch. Forward drive is through a roller clutch 29, the driving member 30 being also fixedly connected to the end 31 of a reversely acting, initially tensioned coil spring 32, the other end of which is secured in a slot in a member 37 rotatable on the driven shaft 26 and carrying a female cone 39 engageable at will with a movable male cone 40 splined on the driven shaft. To lock the free-wheel the cones 39, 40 are engaged by means of a striker fork 44, and transmit sufficient torque to initiate engagement of the coil 32 with a driven drum 35, the coil thereafter tightening on the drum to transmit braking and reverse torque. The coil is prevented from unwinding by an external housing 33. As shown in Fig. 4, the coil-engaging drum 35 has oblique or longitudinal grooves 45a into which the oil film is squeezed so that true metal-to-metal contact is obtained. The grooves taper towards the anchored end 31 of the coil, or end slightly before it, so that the pressure intensity is not unduly increased at this end where the tension is greatest. The clutch is arranged between the gear box and cardan shaft of a motor vehicle. The Provisional Specification contains also the following additional subject-matter. The forwardly driving free-wheel clutch may be of the coil-spring type used either alone or in conjunction with a roller clutch to initiate its engagement as described in Specification 339,692, [Class 80 (ii), Gearing, Variable-speed &c.]. When a coil clutch is used, it may be end-toend with the locking coil clutch and wound in the opposite direction on a common drum. Two short coils wound in the same direction on a common corrugated drum may be used, their adjacent ends being fixed to a flange fast with the driven shaft. The other end of the rear spring is operated by a roller clutch as described in the above-mentioned Specification, or a roller clutch alone may replace the rear spring. The locking coil spring is actuated through planetary gearing by a friction element splined on the driving shaft and operating to rotate a sunwheel engaging planets carried by the front end of the coil spring and meshing with an internallytoothed ring fast with the driven shaft. Instead of the grooves 45a in the drum, there may be corrugations, flutes, dimples, projections, studs, drilled holes, or slots, and where corrugations or grooves are used these may be in two or more sets crossing at an angle.
Patent GB-1315072-A (GB)
Title: Portioning device for liquids and malleable material
IPC: A22C11/08
Filed: 1971-05-10
Abstract: 1315072 Variable speed ratchet gear; linkwork K SCHNELL 10 May 1971 [12 May 1970] 13982/71 Headings F2D and F2K [Also in Division F1] In a portioning apparatus for, e.g. sausagemeat (see Division F1), the drive-shaft 6 is rotated intermittently by a crank arm 13, pivoted to a block 16 mounted on a rotary disc 19, oscillating a ring 15 through an angle 20, the ring acting on the shaft 6 through a one-way freewheel clutch 8. The disc 19 has a hollow shaft 40 driven via bevel gears 41, 42 and a drive-shaft 44. Coaxially mounted within shaft 40, and rotated in unison therewith by means of gear 39, ring gear 38, differential gear unit 31 and gears 27, 28, is a shaft 26 co-operating via a bevel gear pair 22, 23 with a threaded spindle 21 on which block 16 is mounted. Rotation of the spindle 21 displaces the block 16 radially in a slot 18, varying the throw of crank arm 13, and is effected by a hand wheel 34 acting via gear 32 on the differential gear unit 31 to produce relative rotation between the shafts 26 and 40. The drive-shaft 6 is connected to the casing via an arm 47 and a second one-way freewheel clutch 9 which prevents reverse rotation of the shaft 6. The clutches 8, 9 may be replaced by ratchet mechanisms.
Patent GB-435169-A (GB)
Title: Improvements in methods of manufacturing photo-electric electrodes
IPC: H01J40/06
Filed: 1935-05-14
Abstract: 435,169. Photo-electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 29, Emmasingel, Eindhoven, Holland. May 14, 1935, No. 14169. Convention date, July 26, 1934. Drawings to Specification. [Class 39 (i)] In manufacturing photo-electric electrodes by reducing a metallic oxide by a photoelectric metal, the metallic oxide is interspersed or coated with metallic particles prior to exposure to the photo-electric metal. In one method, the metallic oxide is partly reduced by hydrogen at a temperature of 150‹ C. If silver oxide is used, less than 50 per cent preferably 10 to 20 per cent is so reduced. Caesium is then admitted and the tube filled with argon, xenon, or krypton at a pressure of a few hundredths of a mm. Alternatively the oxide may be reduced by intense illumination, for example, from a high-pressure mercury vapour lamp. The wall of the lamp and the wall of the cell may both be of quartz to permit the passage of ultra-violet light. In another method, an alloy of silver and gold is subjected to cathode dispersion in an atmosphere of oxygen, a cathode body of silver oxide mixed with gold being thus obtained. Or a silver film may be deposited on the bulb from a heated oxide, oxidized and then coated with more silver, or with gold, nickel or tungsten. Specification 416,703 is referred to.